What do the youngest Cratchits want Martha to do just after she arrives?

Martha, the oldest Cratchit daughter, arrives home late after a long morning of work.  Her mother encourages Martha to sit by the fire to warm herself while the rest of the family finishes their Christmas dinner preparations.  The two youngest Cratchit children instead want Martha to hide from their father and Tiny Tim, who are about to arrive home from church.  They see him approaching the house from the window.  Martha agrees and quickly hides behind a closet door.  When Tiny Tim and Bob Cratchit arrive inside, his wife informs him that Martha is not coming.  Bob is clearly disappointed at this news.  Martha cannot stand to disappoint her father, so she ends the joke early and emerges from her hiding spot.  She runs to hug her father.